Subj : oxp locks up, again
To   : Martin Foster
From : August Abolins
Date : Mon Feb 10 2020 22:48:00

Hello Martin!

** 09.02.20 - 11:36, Martin Foster wrote to August Abolins:

 AA>> Which leads me to the security/bug/weakeness.

 AA>> ..then anyone could arbitrarily send me a nodelist, and its
 AA>> presence can screw up oxp (just like the presence of the old
 AA>> nodelist/diffs that I still had in there did).

 MF>It wasn't the presence of the old nodlists/diffs that was causing the
 MF>problem :)

Correct. The main problem was having a Z1 nodelist and using a Z2 diff  
update file.  But the only way I managed to clear the lock up was to  
delete the latent nodelist/nodediff files I still had in the incoming  
/FILES directory.


 MF>..The only files it takes action on are nodediffs/pointdiffs and if
 MF>any of them are out of sequence, it just ignores them.

It was still taking action on the NODEDIFF that was in /FILES, even though  
I had cleared out the nodelist config tables.  The /FIDO directory was  
empty!

The following settings marked "<==THIS" were probably enabled:

+- Configure Node/Pointlist ------------------------+
|                                                   |
|  List name         NODELIST.###      Number  038  |
|                                                   |
|  Format of list    Nodelist        ?              |
|  Zone/Address                                     |
|                                                   |
|  Update file       NODEDIFF.###                   |
|  Update archive    NODEDIFF.Z##                   |
|                                                   |
|  Process by                                       |
|                                                   |
|   [x]   Use internal nodelist processor           |<==THIS
|   [x]   Delete update after processing            |

+- Fido Options ---------------------------------+
Ý                                                Ý
Ý  Int. dial prefix    00                        Ý
Ý  Nat. dial prefix    0                         Ý
Ý  Your dialing code   49-631                    Ý
Ý                                                Ý
Ý   [x]   Import nodelist updates automatically  Ý<==THIS
Ý   [ ]   Delete empty messages                  Ý
Ý   [x]   Automatic TIC file processing          Ý<==THIS?


Is it the presence of a .TIC file in /FILES that can trigger the "action"  
too?

Maybe I am worried over nothing since OXP probably takes a more secure  
process (ie acting on files only received from my Boss system via the TIC  
information) before it acts on just anything that looks like a diff file  
in the /FILES directory.


  ../|ug

--- OpenXP 5.0.43
 * Origin: ....................... (2:221/1.58)

.